Passat CC TPMS - What type is it?

[Eaglen00b]

I run the recommended pressures as per the digital display on the MY12 CC - 290 kpa cold. Get this... 42psi!!
I've never had a car run this pressure before (I'm early 40s) so this surprised me & I had to double check. And this is for the Part Load setting!

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Hi Elmura,

Wow, your recommended pressures sound really high, especially for part loading! Are you running 42psi all round?

42psi cold would mean around 45psi once the tyres warm up, which I'd imagine would probably make the ride noticeably harsh, even with suspension set to "Comfort".

Maybe your tires are a different size to mine? I've got the standard factory "Lakeville" rims with Continental Contisportcontact 5 tires 235/40 R18 95W Extra Load.

The MFD on my CC displays a recommended pressure of 38psi fronts and 35psi rears part loaded. No issues with tire wear, handling or ride quality at these pressures. If anything the ride is a bit quieter over the coarse chip roads we have plenty of here in WA.

The only time I've run higher pressures was when the missus, myself and another couple went on a road trip from Perth to Sydney, Jindabyne via Canberra, The Alpine Way, Thredbo, Melbourne, Mt Gambier via Great Ocean Rd, Adelaide and back to Perth. The CC was fully loaded with four ppl + luggage + munchies + water too.

I ran the fronts at 42psi and rears at 39psi for the duration of the trip and it was perfectly fine. Ride was compliant, tires wore evenly, no issues whatsoever.

On a side note, I was pretty stoked to get at least 1200km out on the open road from a single tank of diesel before the fuel warning light came on, which is fantastic when blitzing the stretch between Norseman WA and Ceduna SA and back across the Nullabor.

[Elmura]

Hi Elmura,

Wow, your recommended pressures sound really high, especially for part loading! Are you running 42psi all round?

42psi cold would mean around 45psi once the tyres warm up, which I'd imagine would probably make the ride noticeably harsh, even with suspension set to "Comfort".

Maybe your tires are a different size to mine? I've got the standard factory "Lakeville" rims with Continental Contisportcontact 5 tires 235/40 R18 95W Extra Load.

The MFD on my CC displays a recommended pressure of 38psi fronts and 35psi rears part loaded. No issues with tire wear, handling or ride quality at these pressures. If anything the ride is a bit quieter over the coarse chip roads we have plenty of here in WA.

The only time I've run higher pressures was when the missus, myself and another couple went on a road trip from Perth to Sydney, Jindabyne via Canberra, The Alpine Way, Thredbo, Melbourne, Mt Gambier via Great Ocean Rd, Adelaide and back to Perth. The CC was fully loaded with four ppl + luggage + munchies + water too.

I ran the fronts at 42psi and rears at 39psi for the duration of the trip and it was perfectly fine. Ride was compliant, tires wore evenly, no issues whatsoever.

On a side note, I was pretty stoked to get at least 1200km out on the open road from a single tank of diesel before the fuel warning light came on, which is fantastic when blitzing the stretch between Norseman WA and Ceduna SA and back across the Nullabor.

Runs 42psi all round. Our car runs the V6 4 MOTION. Probably the reason. Runs same size tyres & wheels (turbine).
No issues with ride comfort even set to Sport and eibach lower springs (set to Sport most of the time except when road surface is poor).
I must see what the recommended pressures are fully loaded...
PS - Great road trip, bet the car needs a respray though

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[Eaglen00b]

Runs 42psi all round. Our car runs the V6 4 MOTION. Probably the reason. Runs same size tyres & wheels (turbine).
No issues with ride comfort even set to Sport and eibach lower springs (set to Sport most of the time except when road surface is poor).
I must see what the recommended pressures are fully loaded...
PS - Great road trip, bet the car needs a respray though

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Yeah that makes sense, since yours is 4MOTION. With all four wheels providing drive, even with predominantly front wheel drive bias, it's only logical to have uniform pressures all round.

4MOTION would've been handy on Alpine Way. I wouldn't have had to put on the K-Summits to go past Dead Horse Gap from the Cascades. It just feels plain weird driving with chains on.

Respray? Nope (thankfully) . It did need a really thorough clean though! Lots and lots of bug splats and grime but the guy who does my detailing did his magic and brought the car back to pretty much showroom condition.

Strangely enough, the long trip seems to have made the car run even better. The motor feels more "freed".

[seanmau5]

Sounds like an epic road trip! You certainly covered some kilometres that I wouldn't dream of doing in my V6. Although I managed around 7.9L/100 on a trip from Sydney to Albury it still isn't efficient enough for long haul trips particularly when I have to pay around 1.50-1.60 for 98 octane.

Anyway, back on topic. I wonder how hard it would be to retrofit the 433MHz system in place of my more basic 315MHz system. I realise changing the wheel sensors is simple but it's the rest that could be a problem. Anyone done it?


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[rjt86]

I'm actually looking to retrofit this soon in mine, so I can let you know what's involved. I believe it's a tpms module, all 4 premium sensors and I believe there is a antenna for the tpms sensors located around one of the wheel arches. I'll have to see what the wiring is like.

I also heard you need a replacement instrument cluster in order for the individual pressures to be displayed like the 2011+ cc's. I'm waiting for a colour display to come down which will sort that issue